Like Palmer, he made three Pro Bowls in his career.
Hubbard was a running back for Woody Hayes at Ohio State from 1965-67 and after graduating became the first African-American assistant coach for the Buckeyes.
He coached at his alma mater from 1968-73 then left for Florida A&M, where he posted a record of 83-48-3 and won a pair of Black College Football National Championships.
He is also the only HBCU coach to win the FCS national championship, leading the Rattlers to that triumph in 1978.
Hubbard is the sixth former Ohio State assistant to make the CFB HOF, joining Ernie Godfrey, Bo Schembechler, Sid Gillman, Doyt Perry and Lou Holtz.
Like Hubbard, Godfrey and Gillman were also Ohio State players.